Ported from http://cgit.freedesktop.org/harfbuzz/commit/?id=a6a79df5fe2e
by Karl Tomlinson <karlt+@karlt.net>

Victor Manuel Jaquez Leal authored Mar 14, 2011 and Behdad Esfahbod committed Apr 04, 2011

https://bugzilla.gnome.org/show_bug.cgi?id=644724

John (J5) Palmieri authored Feb 17, 2011 and Behdad Esfahbod committed Apr 04, 2011

https://bugzilla.gnome.org/show_bug.cgi?id=642593

I'm guessing that Ubuntu has broken libtool by not automatically adding
dependent libraries from the .la file...

Colin Walters authored Sep 28, 2010 and Vincent Untz committed Sep 29, 2010

For inter-module includes we need to use --include-uninstalled,
otherwise we may try to process pkg-config entries for uninstalled
.pc files.

Also:

* Don't include pangoft2 in its own package list.
* Filter out non-public pango-color-table.h

https://bugzilla.gnome.org/show_bug.cgi?id=630857

Cleanup LINE_IS_VALID() usage.

Fix two div-by-zero's.  Both have been fixed upstream.

Fix regression.

Dont load usp10.dll dynamically with LoadLibrary(). Just link to the
Uniscribe API directly. MinGW comes with an import library so no
problem with that either. The Uniscribe DLL is present on all versions
of Windows we care for.

The use of Uniscribe script caches was decidedly suboptimal. Use one
persistent SCRIPT_CACHE per Win32 font and script.

Patch by by David E. Hollingsworth and Fredrik Corneliusson,
from bug #621869.

Conflicts:
	pango/Makefile.am

Fix awful confusion between lookup format and subtable format

As reported by John Daggett.

See http://build.gnome.org/builders/pango-RHEL5/builds/310/steps/pango%20check/logs/stdio

Bug 605870 - Incorrect shaping for Syriac

Bug 457990 - font metrics are not converted to user space in cairo backend